TWM516079U - Safety door lock - Google Patents

Description

Safety door lock

The present invention relates to a door lock, and more particularly to a safety door lock that can open a door leaf in two stages.

In the existing general door lock, when the lock is not locked, the door leaf can be opened by rotating the door handle. However, the design of easy opening is a big worry for the loss of mentally retarded people or children in the family.

In the prior art, the design of the door opening is limited to the child safety lock of the automobile. For example, the invention patent of the Republic of China Patent No. I314605 discloses a door lock anti-child opening device. The door lock anti-child opening device includes: an opening member that is movable in a direction in which the door lock is released in a state in which the door lock is unlocked, and an inner lever that is actuated by input from the inner lever, and the opening member A movement operator that operates in the direction in which the door lock is released, and a possible child-proof device member and a base are switched between a child-protectable set position and a non-set position for releasing child protection by the operation of the operation unit. The door lock anti-child opening device component is set The state can be directly moved between the set position and the non-set position and the rotation of the base is prevented.

However, the door lock anti-child opening device shown in the above patent, Applicable only to cars, not to door leaf management in buildings. In order to reduce the accident of loss of mentally retarded persons or children, it is necessary to develop a door lock that can not easily rotate the door handle when the lock is not locked, so as to reduce the possibility of accidents.

Therefore, the purpose of the present invention is to provide a safety door lock to solve the disadvantage that the existing door handle can be easily rotated to open the door leaf, and the demented person or child is easily lost.

Therefore, the new safety door lock comprises two lock seats, two door handles, two first sleeves, a lock core, two second sleeves, a fixing seat and a locking tongue. The two lock seats are respectively disposed on both sides of the door panel. One end of each door handle is disposed on each of the lock seats, and the other end extends away from the lock seat and is bent, so that the door handle swings around the lock seat. Each of the first sleeves is a hollow tube body that is closed at one end, and the closed end of each of the first sleeves is connected to one end of each of the door handles, and a first elastic element is disposed in each of the first sleeves. The lock cylinder is a cylinder, and two ends of the lock core are respectively inserted into the two first sleeves and respectively abut against the first elastic element. Each of the second sleeves is a hollow tube body which is open at both ends and has one end tapered. Each of the second sleeves is sleeved on both outer sides of the lock cylinder, and the tapered ends of the second sleeves are disposed corresponding to the open ends of the first sleeves, so that the tapered ends of the second sleeves are selectively inserted And snapped to the open end of the first sleeve. The fixing seat is a hollow pipe body, and the fixing seat is sleeved on the outer side of the lock cylinder and disposed between the two second sleeves. The locking tongue is movably disposed on one side of the fixing seat, and one end of the locking tongue is connected with the lock cylinder. When one of the door handles is displaced against the corresponding first sleeve toward the second sleeve, and the tapered end of the second sleeve is engaged with the open end of the first sleeve, the door handle is rotated to drive the bolt displacement.

Preferably, the aforementioned tapered diameter of the second sleeve is greater than or equal to the diameter of the lock cylinder and less than or equal to the open port diameter of the first sleeve.

Preferably, a fastener is disposed in the second sleeve to connect the inner wall of the second sleeve and the outer wall of the lock cylinder to interlock the lock cylinder with each of the second sleeves.

Preferably, one side of the lock seat is respectively abutted on two sides of the door panel, and the door panel is provided with a first through hole, and each of the lock seats is correspondingly provided with a second through hole and a first through hole, and each of the door handles One end is respectively disposed through the second through hole.

Preferably, one side of the fixing seat is provided with a third through hole corresponding to the fourth through hole of the door panel, one end of the locking tongue is connected with the lock core, and the locking tongue is connected to the third through hole and the fourth through hole. The holes are selectively reciprocally displaced.

Preferably, the second lock member is further provided with a second elastic member, and one end of the second elastic member is connected to the inner wall of the second through hole, and the other end and the door handle are disposed at one end of the second through hole. The outer wall is connected.

Preferably, the aforementioned first elastic element comprises a spring; the second elastic element The piece includes a spring; and the fastener includes a spring.

The effect of the new model is: (1) the safety door lock is provided with a first sleeve and a first The two sleeves are separated from each other by the first sleeve and the second sleeve, and even if the door handle is pushed against the first sleeve to engage the second sleeve, even if the door handle is rotated, only The first sleeve will be idling, and the lock cylinder cannot be rotated, which can effectively prevent the person from easily turning the door handle and open the door panel; (2) the safety door lock is assembled in the same manner as the existing general door lock, and only one more use is used. The procedure of pressing against the door handle is easy to assemble and operate, and it is extremely practical.

1‧‧‧Safety door lock

10‧‧‧Lock seat

50‧‧‧Second sleeve

501‧‧‧ card firmware

101‧‧‧Second through hole

102‧‧‧Second elastic element

20‧‧‧ Door handle

30‧‧‧First sleeve

301‧‧‧First elastic element

40‧‧‧Lock core

60‧‧‧ fixed seat

601‧‧‧ third through hole

70‧‧‧Lock tongue

80‧‧‧ door panel

801‧‧‧ first through hole

802‧‧‧4th through hole

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is an exploded view of the present invention; FIG. 2 is a cross-sectional view of the present invention. It is a schematic diagram of the operation of the new safety door lock; FIG. 4 is a cross-sectional view of the operation of the new safety door lock.

Before the present invention is described in detail, it should be noted that in the following description In the middle, similar components are denoted by the same reference numerals.

Please refer to Figures 1 to 4, which are the new type of safety door locks. The exploded view, the sectional view of the safety door lock of the present invention, the actuation diagram of the safety door lock of the present invention, and the action sectional view of the safety door lock of the present invention.

An embodiment of the new safety door lock 1 includes two lock seats 10, two door handles 20, two first sleeves 30, a lock cylinder 40, two second sleeves 50, a fixing base 60 and a locking tongue 70. The two locking seats 10 are respectively disposed on the two sides of the door panel 80. One side of the locking seat 10 abuts against the door panel 80, the door panel 80 is provided with a first through hole 801, and the locking seat 10 is correspondingly provided with a second through hole 101 and the first The through hole 801 is penetrated, one end of the door handle 20 is disposed through the second through hole 101, and the other end is extended and bent away from the lock seat 10, so that the door handle 20 can be pivoted by the lock base 10.

The first sleeve 30 is a hollow tube body closed at one end, and a first elastic member 301 is disposed inside, and a closed end of the first sleeve 30 and a door handle 20 are connected to one end of the second through hole 101. The lock cylinder 40 is a cylinder, and the two ends are respectively inserted into the first sleeve 30 and abut against the first elastic member 301.

The second sleeve 50 is a hollow tube body which is open at both ends and has one end tapered. The second sleeve 50 is sleeved on the outer side of the lock cylinder 40, and the tapered end of each second sleeve 50 and the first sleeve The open end of the barrel 30 is correspondingly arranged. The second sleeve 50 is respectively provided with a fastener 501 The inner wall of the second sleeve 50 and the outer wall of the lock cylinder 40 are connected to interlock the lock cylinder 40 with each of the second sleeves 50.

The fixing base 60 is a hollow tubular body, and the fixing base 60 is sleeved outside the lock cylinder 40 The side is disposed between the two second sleeves 50. A third through hole 601 is defined in one side of the fixing base 60. The third through hole 601 is disposed corresponding to the fourth through hole 802 of the door panel 80. One end of the locking tongue 70 is connected to the lock cylinder 40, and the locking tongue 70 can be The three through holes 601 and the fourth through holes 802 are reciprocally displaced.

In this embodiment, the second elastic member 102 is further disposed in the lock base 10, and One end of the second elastic member 102 is connected to the inner wall of the second through hole 101, and the other end is connected to the outer wall of the one end of the second through hole 101. Moreover, the tapered port diameter of the second sleeve 50 is greater than or equal to the diameter of the lock cylinder 40 and less than or equal to the opening port diameter of the first sleeve 30. In addition, in the embodiment, the first elastic element 301, the second elastic element 102, and the fastener 501 are all represented by springs, but are not limited thereto.

With the configuration of the safety door lock 1 of the present invention, when the door panel 80 is to be opened, The door handle 20 is first pressed against the lock seat 10, and the door handle 20 is inserted through one end of the second through hole 101 to push against the first sleeve 30 to compress the first elastic member 301 and the first sleeve 30. The open end is snapped to the tapered end of the second sleeve 50. After the first sleeve 30 is engaged with the second sleeve 50, the door handle 20 is rotated, then the door handle 20 drives the first sleeve 30 to rotate, and the first sleeve 30 drives the second sleeve 50 to rotate, and Card firmware 501 configuration, when the first When the two sleeves 50 are rotated, the lock cylinder 40 can be rotated together, so that the lock cylinder 40 can drive the lock tongue 70 to retract toward the door panel 80, so that the door panel 80 can be opened.

When the door handle 20 is no longer pressed, the door handle 20 is subjected to the second elastic member The action of 102 returns to the horizontal state, and the first sleeve 30 is moved by the first elastic member 301 toward the lock seat 10 to be separated from the second sleeve 50. At this time, since the first sleeve 30 is not engaged with the second sleeve 50, even if the door handle 20 is rotated again, only the first sleeve 30 is idling, and the lock cylinder 40 cannot be rotated, and cannot be retracted. The locking tongue 70 opens the door panel 80.

It should be noted that rotating the door handle 20 to cause the lock cylinder 40 to drive the lock tongue 70 is conventional, and is not the object of the present invention, and will not be described herein.

According to the configuration of the safety door lock 1 of the present invention, it is possible to prevent the person from easily opening the door panel without locking, thereby reducing the possibility of loss of personnel.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧Safety door lock

10‧‧‧Lock seat

101‧‧‧Second through hole

102‧‧‧Second elastic element

20‧‧‧ Door handle

30‧‧‧First sleeve

301‧‧‧First elastic element

40‧‧‧Lock core

50‧‧‧Second sleeve

501‧‧‧ card firmware

60‧‧‧ fixed seat

601‧‧‧ third through hole

70‧‧‧Lock tongue

80‧‧‧ door panel

801‧‧‧ first through hole

802‧‧‧4th through hole

Claims (6)

A safety door lock comprises: two lock seats respectively disposed on two sides of a door panel; two door handles, one end of each of the door handles is disposed on each of the lock seats, and the other end is extended away from the lock seat and bent Folding, the door handle is pivoted with the lock seat; the first sleeve is a hollow tube body closed at one end, and the closed end of each of the first sleeves and each of the door handles are One end of the lock seat is connected, and a first elastic element is disposed in each of the first sleeves; a lock core is a cylinder, and two ends of the lock core are respectively inserted into the two first sleeves, and respectively The second sleeve is respectively a hollow tube body which is open at both ends and has one end tapered, and the second sleeves are respectively sleeved on the outer sides of the lock core. And the tapered end of each of the second sleeves is disposed corresponding to the open end of each of the first sleeves, so that the tapered end of the second sleeve is selectively inserted and snapped to the first sleeve An open end; a fixed seat is a hollow tubular body, the fixed seat is sleeved on the outer side of the lock cylinder, and is disposed between the two second sleeves And a locking tongue is movably disposed on one side of the fixing seat, and one end of the locking tongue is connected with the lock core, and one of the door handles is pushed against the corresponding first sleeve toward the first The sleeve is displaced, and the tapered end of the second sleeve is engaged with the open end of the first sleeve, so that the door handle is interlocked with the bolt. The safety door lock of claim 1, wherein the tapered end of the second sleeve has a diameter greater than or equal to a diameter of the lock cylinder and less than or equal to a diameter of the open end of the first sleeve. The security door lock of claim 2, wherein each of the second sleeves is provided with a fastener connecting the inner wall of the second sleeve and the outer wall of the lock cylinder to make the lock core and the second sleeve The barrels are linked. The security door lock of claim 1 , wherein one side of each of the lock seats abuts against two sides of the door panel, and the door panel is provided with a first through hole, and each of the lock seats is correspondingly provided with a second through hole. The first through hole is penetrated, and one end of each of the door handles is respectively disposed through the second through hole. The security door lock of claim 4, wherein one side of the fixing seat is provided with a third through hole, and is corresponding to one of the fourth through holes of the door panel, one end of the locking tongue is connected to the lock cylinder, and The locking tongue is selectively reciprocally displaced within the third through hole and the fourth through hole. The security door lock of claim 5, wherein the second seat is further provided with a second elastic member, and one end of the second elastic member is connected to the inner wall of the second through hole, and the other end is worn by the door. The outer wall of one end of the second through hole is connected.